1212432980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{15791}}^1$

素因数の和:16160

約数の個数: 48

約数和(自身を含む): 2785708800

約数和(自身を除く): 1573275820

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 349, 698, 1396, 1745, 3490, 3839, 6980, 7678, 15356, 15791, 19195, 31582, 38390, 63164, 76780, 78955, 157910, 173701, 315820, 347402, 694804, 868505, 1737010, 3474020, 5511059, 11022118, 22044236, 27555295, 55110590, 60621649, 110221180, 121243298, 242486596, 303108245, 606216490, 1212432980]

約数ペア:

[(1, 1212432980), (2, 606216490), (4, 303108245), (5, 242486596), (10, 121243298), (11, 110221180), (20, 60621649), (22, 55110590), (44, 27555295), (55, 22044236), (110, 11022118), (220, 5511059), (349, 3474020), (698, 1737010), (1396, 868505), (1745, 694804), (3490, 347402), (3839, 315820), (6980, 173701), (7678, 157910), (15356, 78955), (15791, 76780), (19195, 63164), (31582, 38390)]